X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=src%2Fstd.c;h=643500f169ee50b88f24045867ff4c81182bf455;hb=2cb232a9e42345c3783f4898c5a5049871edc534;hp=7cd2313129456605a970924232b0ec990a8e04a7;hpb=1b38775baa3016fb4d613c971dce5a4f26cacb7b;p=libsigrok.git

diff --git a/src/std.c b/src/std.c
index 7cd23131..643500f1 100644
--- a/src/std.c
+++ b/src/std.c
@@ -18,10 +18,13 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
-/** @file
-  * Standard API helper functions.
-  * @internal
-  */
+/**
+ * @file
+ *
+ * Standard API helper functions.
+ *
+ * @internal
+ */
 
 #include <config.h>
 #include <glib.h>
@@ -91,7 +94,7 @@ SR_PRIV int std_cleanup(const struct sr_dev_driver *di)
  */
 SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi)
 {
-	const char *prefix = sdi->driver->name;
+	const char *prefix = (sdi->driver) ? sdi->driver->name : "unknown";
 	int ret;
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_header header;
@@ -123,7 +126,7 @@ SR_PRIV int std_session_send_df_header(const struct sr_dev_inst *sdi)
  */
 SR_PRIV int std_session_send_df_end(const struct sr_dev_inst *sdi)
 {
-	const char *prefix = sdi->driver->name;
+	const char *prefix = (sdi->driver) ? sdi->driver->name : "unknown";
 	int ret;
 	struct sr_datafeed_packet packet;